Original Alientech KESS3 device for programming and modifying ECUs and TCUs. The KESS3 is considered one of the latest and most powerful professional car programming devices from Alientech, combining three operating modes in one device: OBD, Bench, and Boot Mode, giving the technician great flexibility in reading, writing, and cloning data from engine and transmission control units. Key Features: Supports programming directly via OBD port. Supports Bench mode without opening the control unit in many cars. Supports Boot Mode for full access to the control unit's memory. Reads and writes ECU and TCU files. Ability to clone many supported control units. Modern and easy-to-use interface. High processing speed compared to previous generations. Supports a large number of cars, trucks, motorcycles, and boats depending on activated protocols. Device condition: New, used for one week, with approximately 11 months of subscription remaining. Accessories: All accessories and cables are included as shown in the picture. Reason for selling: Need money. A suitable device for car programming professionals, engine file modification, and electronic control unit maintenance.